Not fertile or something more

Kekey

Ok so I’ve been married divorced then engaged and now I’m in a consistent whatever you want to call it we’ve been on and off for 2 years now and he has never cum in me but once; whereas my ex husband and ex fiancé has .I was on depo in 2015 of April ever since the ONE DOSE I took I haven’t been able to get pregnant even if I tried I still have a a period more irregular and heavier these days but this recent month tit was at a pretty moderate level. I just need to know if there is something wrong with me or what my possibilities are before I go to my doctor